to that foreign policy. roosevelt, pearl harbor was a godsend to him. i'm not suggesting for a second that he in any way engineered the surprise, but it allowed him to unify the country, you see, to fight world war ii. harry truman made the mistake of losing that consensus for the fight in korea, destroyed his presidency. johnson lost the consensus for the fighting in vietnam, destroyed his presidency. bush, domestic, weapons of mass destruction that weren't there. it undermined his leadership and left him with a terribly diminished popular support, including katrina and the economic downturn, you see. we talked to obama about this, and i said to him, mr. president, if you get into one of these wars without vital public commitment and consensus, it plays havoc with your domestic agenda because you lose your hold. you lose your credibility. remember johnson's credibility gap? how do you know when lending is telling you the truth? he begins to move his lips you know he is lying. [laughter] he didn't think it w